Fix: Handle options of nmea messages

Signed-off-by: Thomas Klaehn <thomas.klaehn@perinet.io>

Cargo.lock

@@ -102,7 +102,7 @@ checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
 
 [[package]]
 name = "gps_parser"
-version = "0.1.0"
+version = "0.3.1"
 dependencies = [
  "chrono",
  "nmea-parser",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "gps_parser"
-version = "0.1.0"
+version = "0.3.1"
 edition = "2021"
 
 [dependencies]

src/lib.rs

@@ -6,10 +6,10 @@ use nmea_parser::*;
 
 #[derive(Debug)]
 pub struct ParseResult {
-    lat: f64,
-    lon: f64,
-    timestamp: DateTime<Utc>,
-    speed: f64
+    pub lat: f64,
+    pub lon: f64,
+    pub timestamp: DateTime<Utc>,
+    pub speed: f64,
 }
 
 pub struct GpsParser {
@@ -50,13 +50,25 @@ impl GpsParser {
                 match parser.parse_sentence(&line)? {
                     ParsedMessage::Gga(gga) => {
                         parsed_gga = true;
-                        res.lat = gga.latitude.unwrap();
-                        res.lon = gga.longitude.unwrap();
-                        res.timestamp = gga.timestamp.unwrap();
+                        res.lat = match gga.latitude {
+                            Some(value) => value,
+                            _none => 0.0,
+                        };
+                        res.lon = match gga.longitude {
+                            Some(value) => value,
+                            _none => 0.0,
+                        };
+                        res.timestamp = match gga.timestamp {
+                            Some(value) => value,
+                            _none => Utc::now(),
+                        };
                     },
                     ParsedMessage::Vtg(vtg) => {
                         parsed_vtg = true;
-                        res.speed = vtg.sog_kph.unwrap();
+                        res.speed = match vtg.sog_kph {
+                            Some(value) => value,
+                            _none => 0.0,
+                        };
                     },
                     _ => {
                     }